561411

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:280

約数の個数: 20

約数和(自身を含む): 871200

約数和(自身を除く): 309789

約数列:

[1, 3, 9, 27, 29, 81, 87, 239, 261, 717, 783, 2151, 2349, 6453, 6931, 19359, 20793, 62379, 187137, 561411]

約数ペア:

[(1, 561411), (3, 187137), (9, 62379), (27, 20793), (29, 19359), (81, 6931), (87, 6453), (239, 2349), (261, 2151), (717, 783)]